Brick-glazing compound.



burrs or curios.

THENRY OHLSEN AND JOHN OHLSEN, or tour CITY, NEBRASKA.

BRICK-GLAZING ooMPouNn.

Specification of Letters Patent.

Patented May 18, 1909.

To all whom it may concern:

Be it known that we, HENRY OnLsEN and. JOHN OnLsEN, citizens of the United States, residing at Loup City, in the county of Shermen and State of Nebraska, have invented certain new and useful Improvements in Brick-Glazing Compounds; and we do declere the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use t-l e same.

This invention relates to an improved glazing composition for bricks, and the object of the invention is to provide a compound of this class which. is applicable-t0 )rieks or other articles either green or burned, and which is cheap to manufacture and produces a fine quality glazed finish.

This composition is composed of two main ingredients to which various other ingredients may be added to produce different coloring effects and dill'crcnt properties. The main ingredient of ihodill'erent glazes is lead pigment such as is used in points, either red or white occording'to the color desired com bined with inc screen muddy clay water, shale clay or porcelnii'i clay water. The muddy cluy water is produrcd by mixing pure dry clay dust with water in about the following proportions: from 5 to H) tuble- SPOOllfUlS of pure dry clay dust withl pint of water, the dust being mixed and held in suspension in the water, produces the muddy clay wutcr.

To produce a fine red glaze, the following ingredients are con'iminglcd: 1. part pure red lend pigment; l'pm-lbrandy; 3 ports muddy clay waiter.

Another glaze is composed of 1 part loud pigment; l purl urine; 2 ports muddy (-luy water.

For :1. black ghizc, the following ingredients are mixed: l purl loud pigment; 1 port shale WLtiOl'; l part soot (prcl'orubly taken l'romn boiler) and l purl uloohol, or liquor of ;my kind.

For n. grren grey glnzc, the mixture is composed of l pur loud pigment; 1 part muddy clay water; 1 part bluc vitriol water; i part. urine; l purl nir-slukod lin c.

- It has also been found that a mixture of lead pigment and flour produces a good glaze, mixed in the following proportions: 1 pert lead pigment, and 1 part flour mixed to a thin fluid.

The brick before the glaze is ap lied, is preferably dipped in flour paste or b ood Weter to obtain on even glazing of the brick.

Thegla-ze maybe applied to green clay bricks and then burned; or to burned bricks and then burned again, or the glazed bricks may be again burned with equally good. results. be added to the different glazes to produce different colors. I

The lead above described. is pure red and white lead pigment such as is used in the manufacture of paints, and the clay water mixed with the lead is first screened or strained through a suitable cloth to remove all of the send or impurities, end-this urc strained water is then mixed with the end to form a thin fluid into which. the face of the bricks is dipped. dry on the face of the bricks and they are then placed in :L kiln and burned, which causes the loud and clay water to melt on the face of the brick and form it glaze. clay burns white the glaze will be light, and if it burns red the color in the glaze will be red, at yellow color Will be obtained if the clay burns yellow end brandy or other alcoholic liquor is added to the mixture to give the glaze a bright shining a penronce. The soot is obtained from boi er tubes and is especially adopted for uppliuints purpose, us it is :i cheap ingredient and produces it line block glnze. The air shtked lime coinbinod with the other ingredients produces u green grey mctullic ghizo.

llnving thus fully described our invention, wlmt we claim as new, and desire to secure by liottors-Putont, is. i

l. A glazing composition comprising loud pigment n'iir-redwith muddy clay wntor and an alcoholic liquor.

2. A glazing composition comprising loud pigment mixed with clay Witter and an alcowho it nor, end a coloring ingredient comminglu tlwrewith.

Various coloring ingredients may This fluid is allowed to I if the 3. A glazing composition composed of one set our hands in presence of two subscribing I E part lead pigment, one part brandy and one Witnesses. part muddy clay water. i HENRY OHLSEN I l a 4. A glazing oomposmon compnslng one 1 f 1' f w 1 L JOHh JHLSILR, PHIL lead plgment, one part muddy clay. Water, one part blue vltrlol Wat-er, one part l "Witnesses:

air-slaked lune and one part; alcoholic liquor.

W. F. MASON, in testim ny whereof We have hereunto E B. Plus'r. 

